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39C3: Power Cycles

Full playlist: Video / Audio

The 39th Chaos Communication Congress (39C3) takes place in Hamburg on 27-30 Dec 2025, and is the 2025 edition of the annual four-day conference on technology, society and utopia organized by the Chaos Computer Club (CCC) and volunteers. Congress offers lectures and workshops and various events on a multitude of topics including (but not limited to) information technology and generally a critical-creative attitude towards technology and the discussion about the effects of technological advances on society.
https://events.ccc.de/congress/2025/
A post-American, enshittification-resistant internet
61 min

A post-American, enshittification-resistant internet

Die Känguru-Rebellion: Digital Independence Day
56 min

Die Känguru-Rebellion: Digital Independence Day

All my Deutschlandtickets gone: Fraud at an industrial scale
60 min

All my Deutschlandtickets gone: Fraud at an industrial scale

The Heartbreak Machine: Nazis in the Echo Chamber
44 min

The Heartbreak Machine: Nazis in the Echo Chamber

Hacking washing machines
56 min

Hacking washing machines

CCC-Jahresrückblick
91 min

CCC-Jahresrückblick

To sign or not to sign: Practical vulnerabilities in GPG & friends
48 min

To sign or not to sign: Practical vulnerabilities in GPG & friends

Security Nightmares
63 min

Security Nightmares

Och Menno – IT und IT Security Uppsis
42 min

Och Menno – IT und IT Security Uppsis

Zentrum für Politische Schönheit:
42 min

Zentrum für Politische Schönheit:

Ein Jahr Adenauer SRP+ und der Walter Lübcke Memorial Park

Bluetooth Headphone Jacking: A Key to Your Phone
59 min

Bluetooth Headphone Jacking: A Key to Your Phone

Gegenmacht - Best of Informationsfreiheit
55 min

Gegenmacht - Best of Informationsfreiheit

Agentic ProbLLMs: Exploiting AI Computer-Use and Coding Agents
58 min

Agentic ProbLLMs: Exploiting AI Computer-Use and Coding Agents

A Tale of Two Leaks:
31 min

A Tale of Two Leaks:

How Hackers Breached the Great Firewall of China

Wer liegt hier wem auf der Tasche?
56 min

Wer liegt hier wem auf der Tasche?

Genug mit dem Bürgergeld-Fetisch. Stürmt die Paläste!

Verlorene Domains, offene Türen
40 min

Verlorene Domains, offene Türen

Was alte Behördendomains verraten

Infrastructure Review
63 min

Infrastructure Review

KIM 1.5: Noch mehr Kaos In der Medizinischen Telematikinfrastruktur (TI)
54 min

KIM 1.5: Noch mehr Kaos In der Medizinischen Telematikinfrastruktur (TI)

Asahi Linux - Porting Linux to Apple Silicon
37 min

Asahi Linux - Porting Linux to Apple Silicon

Who cares about the Baltic Jammer?
36 min

Who cares about the Baltic Jammer?

Terrestrial Navigation in the Baltic Sea Region

Pwn2Roll: Who Needs a 595€ Remote When You Have wheelchair.py?
56 min

Pwn2Roll: Who Needs a 595€ Remote When You Have wheelchair.py?

PRÜF
38 min

PRÜF

Opening Ceremony
21 min

Opening Ceremony

The art of text (rendering)
38 min

The art of text (rendering)

From Silicon to Darude Sand-storm: breaking famous synthesizer DSPs
39 min

From Silicon to Darude Sand-storm: breaking famous synthesizer DSPs

Schlechte Karten - IT-Sicherheit im Jahr null der ePA für alle
60 min

Schlechte Karten - IT-Sicherheit im Jahr null der ePA für alle

Blackbox Palantir
57 min

Blackbox Palantir

Current Drone Wars
42 min

Current Drone Wars

RedScout42 – Zur digitalen Wohnungsfrage
38 min

RedScout42 – Zur digitalen Wohnungsfrage

Building hardware - easier than ever - harder than it should be
35 min

Building hardware - easier than ever - harder than it should be

Chatkontrolle - Ctrl+Alt+Delete
55 min

Chatkontrolle - Ctrl+Alt+Delete

Neuroexploitation by Design
39 min

Neuroexploitation by Design

Wie Algorithmen in Glücksspielprodukten sich Wirkweisen des…

Die große Datenschutz-, Datenpannen- und DS-GVO-Show
94 min

Die große Datenschutz-, Datenpannen- und DS-GVO-Show

Excuse me, what precise time is It?
56 min

Excuse me, what precise time is It?

The Freak Show Clubhouse
96 min

The Freak Show Clubhouse

Building a NOC from scratch
34 min

Building a NOC from scratch

AI Agent, AI Spy
40 min

AI Agent, AI Spy

DNGerousLINK
52 min

DNGerousLINK

A Deep Dive into WhatsApp 0-Click Exploits on iOS and…

Watch Your Kids: Inside a Children's Smartwatch
36 min

Watch Your Kids: Inside a Children's Smartwatch

CPU Entwicklung in Factorio
38 min

CPU Entwicklung in Factorio

Vom D-Flip-Flop bis zum eigenen Betriebssystem

AI-generated content in Wikipedia - a tale of caution
37 min

AI-generated content in Wikipedia - a tale of caution

Verschlüsselung brechen durch physischen Zugriff - Smartphone Beschlagnahme durch Polizei
38 min

Verschlüsselung brechen durch physischen Zugriff - Smartphone Beschlagnahme durch Polizei

All Sorted by Machines of Loving Grace?
38 min

All Sorted by Machines of Loving Grace?

"AI", Cybernetics, and Fascism and how to Intervene

Power Cycle B7 oder Warum kauft man eine Zeche?
40 min

Power Cycle B7 oder Warum kauft man eine Zeche?

Opening pAMDora's box and unleashing a thousand paths on the journey to play Beatsaber custom songs
44 min

Opening pAMDora's box and unleashing a thousand paths on the journey to play Beatsaber…

In-house electronics manufacturing from scratch: How hard can it be?
39 min

In-house electronics manufacturing from scratch: How hard can it be?

Skynet Starter Kit
58 min

Skynet Starter Kit

From Embodied AI Jailbreak to Remote Takeover of Humanoid…

Och Menno Mode: Power Cycles, Power Suit, Dresscodes WTF
44 min

Och Menno Mode: Power Cycles, Power Suit, Dresscodes WTF

Liberating Bluetooth on the ESP32
33 min

Liberating Bluetooth on the ESP32

Don’t look up: There are sensitive internal links in the clear on GEO satellites
38 min

Don’t look up: There are sensitive internal links in the clear on GEO satellites

10 years of Dieselgate
58 min

10 years of Dieselgate

Breaking architecture barriers: Running x86 games and apps on ARM
38 min

Breaking architecture barriers: Running x86 games and apps on ARM

Lightning Talks - Tag 2
119 min

Lightning Talks - Tag 2

Cracking open what makes Apple's Low-Latency WiFi so fast
39 min

Cracking open what makes Apple's Low-Latency WiFi so fast

selbstverständlich antifaschistisch!
58 min

selbstverständlich antifaschistisch!

Aktuelle Informationen zu den Verfahren im Budapest-Komplex…

Wer hat Angst vor dem Neutralitätsgebot?
42 min

Wer hat Angst vor dem Neutralitätsgebot?

Escaping Containment: A Security Analysis of FreeBSD Jails
59 min

Escaping Containment: A Security Analysis of FreeBSD Jails

Xous: A Pure-Rust Rethink of the Embedded Operating System
39 min

Xous: A Pure-Rust Rethink of the Embedded Operating System

Handy weg bis zur Ausreise
61 min

Handy weg bis zur Ausreise

Wie Cellebrite ins Ausländeramt kam

CUII: Wie Konzerne heimlich Webseiten in Deutschland sperren
40 min

CUII: Wie Konzerne heimlich Webseiten in Deutschland sperren

Not To Be Trusted - A Fiasco in Android TEEs
49 min

Not To Be Trusted - A Fiasco in Android TEEs

„KI“, Digitalisierung und Longevity als Fix für ein kaputtes Gesundheitssystem?
53 min

„KI“, Digitalisierung und Longevity als Fix für ein kaputtes Gesundheitssystem?

Brennende Wälder und Kommentarspalten
39 min

Brennende Wälder und Kommentarspalten

Klimaupdate mit dem FragDenStaat Climate Helpdesk

Doomsday-Porn, Schäferhunde und die „niedliche Abschiebung“ von nebenan
60 min

Doomsday-Porn, Schäferhunde und die „niedliche Abschiebung“ von nebenan

Wie autoritäre Akteure KI-generierte Inhalte für Social…

Making the Magic Leap past NVIDIA's secure bootchain and breaking some Tesla Autopilots along the way
57 min

Making the Magic Leap past NVIDIA's secure bootchain and breaking some Tesla Autopilots…

FeTAp 611 unplugged
34 min

FeTAp 611 unplugged

Taking a rotary dial phone to the mobile age

Endlich maschinenlesbare Urteile!
38 min

Endlich maschinenlesbare Urteile!

Open Access für Juristen

Demystifying Fuzzer Behaviour
39 min

Demystifying Fuzzer Behaviour

APT Down and the mystery of the burning data centers
58 min

APT Down and the mystery of the burning data centers

ISDN + POTS Telephony at Congress and Camp
35 min

ISDN + POTS Telephony at Congress and Camp

Programmierte Kriegsverbrechen?
60 min

Programmierte Kriegsverbrechen?

Über KI-Systeme im Kriegseinsatz in Gaza und warum…

c’t uplink: Digitale Souveränität – sind Häcker:innen jetzt fürs Staatswohl verantwortlich?
51 min

c’t uplink: Digitale Souveränität – sind Häcker:innen jetzt fürs Staatswohl…

Wie wir alte Flipperautomaten am Leben erhalten
38 min

Wie wir alte Flipperautomaten am Leben erhalten

Of Boot Vectors and Double Glitches: Bypassing RP2350's Secure Boot
51 min

Of Boot Vectors and Double Glitches: Bypassing RP2350's Secure Boot

Chaos macht Küche
39 min

Chaos macht Küche

Light in the Dark(net)
40 min

Light in the Dark(net)

Learning from South Korean Telco Breaches
49 min

Learning from South Korean Telco Breaches

Die Sicherheits_lücke live vom 39c3: ein Tag mit der GI
42 min

Die Sicherheits_lücke live vom 39c3: ein Tag mit der GI

Supplements und Social Media – wenn der Online-Hype zur realen Gesundheitsgefahr wird
58 min

Supplements und Social Media – wenn der Online-Hype zur realen Gesundheitsgefahr wird

Set-top box Hacking: freeing the 'Freebox'
51 min

Set-top box Hacking: freeing the 'Freebox'

How To Minimize Bugs in Cryptography Code
40 min

How To Minimize Bugs in Cryptography Code

Recharge your batteries with us
39 min

Recharge your batteries with us

– an empowering journey through the energy transition

Throwing your rights under the Omnibus
60 min

Throwing your rights under the Omnibus

How the EU's reform agenda threatens to erase a decade of…

Eine typisch österreichische Lösung - die Dirndlkoalition
45 min

Eine typisch österreichische Lösung - die Dirndlkoalition

Chaospager
38 min

Chaospager

How to construct an Open Pager System for c3

CSS Clicker Training: Making games in a "styling" language
39 min

CSS Clicker Training: Making games in a "styling" language

Design for 3D-Printing
37 min

Design for 3D-Printing

Reverse engineering the Pixel TitanM2 firmware
37 min

Reverse engineering the Pixel TitanM2 firmware

Closing Ceremony
15 min

Closing Ceremony

Amateurfunk im All – Kontakt mit Fram2
39 min

Amateurfunk im All – Kontakt mit Fram2

There is NO WAY we ended up getting arrested for this (Malta edition)
54 min

There is NO WAY we ended up getting arrested for this (Malta edition)

Power Cycles statt Burnout – Wie Einflussnahme nicht verpufft
43 min

Power Cycles statt Burnout – Wie Einflussnahme nicht verpufft

51 Ways to Spell the Image Giraffe:
38 min

51 Ways to Spell the Image Giraffe:

The Hidden Politics of Token Languages in Generative AI

BitUnlocker: Leveraging Windows Recovery to Extract BitLocker Secrets
59 min

BitUnlocker: Leveraging Windows Recovery to Extract BitLocker Secrets

Prometheus: Reverse-Engineering Overwatch
37 min

Prometheus: Reverse-Engineering Overwatch

Denkangebot: Rainer Mühlhoff über KI und autoritäre Sehnsüchte im Silicon Valley
91 min

Denkangebot: Rainer Mühlhoff über KI und autoritäre Sehnsüchte im Silicon Valley

Von Groschen und SpurLos - GNU Taler auch auf eurem Event!
40 min

Von Groschen und SpurLos - GNU Taler auch auf eurem Event!

GPTDash – Der Reverse-Turing-Test
91 min

GPTDash – Der Reverse-Turing-Test

Aber hier Leben? Nein danke! …oder doch? Wie wir der autoritären Zuspitzung begegnen können.
57 min

Aber hier Leben? Nein danke! …oder doch? Wie wir der autoritären Zuspitzung begegnen…

Trump government demands access to European police databases and biometrics
40 min

Trump government demands access to European police databases and biometrics

Persist, resist, stitch
42 min

Persist, resist, stitch

Fossile Industrie liebt KI!
37 min

Fossile Industrie liebt KI!

freiheit.exe - Utopien als Malware
39 min

freiheit.exe - Utopien als Malware

Peep-Show für die Polizei. Staatliche Überwachung von Queers in Hamburger Toiletten bis 1980
57 min

Peep-Show für die Polizei. Staatliche Überwachung von Queers in Hamburger Toiletten bis…

Spectre in the real world: Leaking your private data from the cloud with CPU vulnerabilities
45 min

Spectre in the real world: Leaking your private data from the cloud with CPU…

And so it begins - Wie unser Rechtsstaat auf dem Highway Richtung Trumpismus rast – und warum afghanische Kläger*innen für uns die Notbremse ziehen
49 min

And so it begins - Wie unser Rechtsstaat auf dem Highway Richtung Trumpismus rast – und…

What Makes Bike-Sharing Work?
40 min

What Makes Bike-Sharing Work?

Insights from 43 Million Kilometers of European Cycling Data

Lightning Talks - Tag 3
119 min

Lightning Talks - Tag 3

How to render cloud FPGAs useless
40 min

How to render cloud FPGAs useless

Breaking BOTS: Cheating at Blue Team CTFs with AI Speed-Runs
40 min

Breaking BOTS: Cheating at Blue Team CTFs with AI Speed-Runs

Unnecessarily Complicated Kitchen – Die Wissenschaft des guten Geschmacks
75 min

Unnecessarily Complicated Kitchen – Die Wissenschaft des guten Geschmacks

Developing New Medicines in the Age of AI and Personalized Medicine
44 min

Developing New Medicines in the Age of AI and Personalized Medicine

When Vibe Scammers Met Vibe Hackers: Pwning PhaaS with Their Own Weapons
34 min

When Vibe Scammers Met Vibe Hackers: Pwning PhaaS with Their Own Weapons

Auf die Dauer hilft nur Power
40 min

Auf die Dauer hilft nur Power

Herausforderungen für dezentrale Netzwerke aus Sicht der…

Och Menno X Disconnected Unexpected : Elbonian Incident Response : Wie reagiere ich falsch
82 min

Och Menno X Disconnected Unexpected : Elbonian Incident Response : Wie reagiere ich falsch

Celestial navigation with very little math
36 min

Celestial navigation with very little math

We, the EU, and 1064 Danes decided to look into YouTube: A story about how the EU gave us a law, 1064 Danes gave us their YouTube histories, and reality gave us a headache
38 min

We, the EU, and 1064 Danes decided to look into YouTube: A story about how the EU gave us…

Build a Fake Phone, Find Real Bugs
41 min

Build a Fake Phone, Find Real Bugs

Qualcomm GPU Emulation and Fuzzing with LibAFL QEMU

Textiles 101: Fast Fiber Transform
41 min

Textiles 101: Fast Fiber Transform

Suing spyware in Europe: news from the front!
56 min

Suing spyware in Europe: news from the front!

Variable Fonts — It Was Never About File Size
43 min

Variable Fonts — It Was Never About File Size

The Last of Us - Fighting the EU Surveillance Law Apocalypse
61 min

The Last of Us - Fighting the EU Surveillance Law Apocalypse

Not an Impasse: Child Safety, Privacy, and Healing Together
45 min

Not an Impasse: Child Safety, Privacy, and Healing Together

The Modular Workshop – The Tunegirl und Rob StrobE
59 min

The Modular Workshop – The Tunegirl und Rob StrobE

A space odyssey #2: How to study moon rocks from the Soviet sample return mission Luna 24
53 min

A space odyssey #2: How to study moon rocks from the Soviet sample return mission Luna 24

A Quick Stop at the HostileShop
32 min

A Quick Stop at the HostileShop

Laser Beams & Light Streams: Letting Hackers Go Pew Pew, Building Affordable Light-Based Hardware Security Tooling
41 min

Laser Beams & Light Streams: Letting Hackers Go Pew Pew, Building Affordable Light-Based…

Neue Chaos Events
58 min

Neue Chaos Events

InselChaos und Håck ma’s Castle plaudern aus dem Nähkästchen

The Angry Path to Zen: AMD Zen Microcode Tools and Insights
36 min

The Angry Path to Zen: AMD Zen Microcode Tools and Insights

Amtsgeheimnis raus, Datenhalde rein
39 min

Amtsgeheimnis raus, Datenhalde rein

Was die Informationsfreiheit in Österreich bringt

Human microservices at the Dutch Railways: modern architecture, ancient hardware?
60 min

Human microservices at the Dutch Railways: modern architecture, ancient hardware?

"Passwort" - der heise security Podcast live vom 39C3
87 min

"Passwort" - der heise security Podcast live vom 39C3

Battling Obsolescence – Keeping an 80s laser tag system alive
42 min

Battling Obsolescence – Keeping an 80s laser tag system alive

Digitale Inklusion: Wie wir digitale Barrierefreiheit für alle erreichen können
59 min

Digitale Inklusion: Wie wir digitale Barrierefreiheit für alle erreichen können

When 8 Bits is Overkill: Making Blinkenlights with a 1-bit CPU
31 min

When 8 Bits is Overkill: Making Blinkenlights with a 1-bit CPU

Race conditions, transactions and free parking
38 min

Race conditions, transactions and free parking

I Hated All The Cross-Stitch Software So I Made My Own: My Deranged Outsider Software Suite For Making Deranged Outsider Art
36 min

I Hated All The Cross-Stitch Software So I Made My Own: My Deranged Outsider Software…

“End Of 10”: How the FOSS Community is Combatting Software-Driven Resource and Energy Consumption
39 min

“End Of 10”: How the FOSS Community is Combatting Software-Driven Resource and Energy…

Comeflywithus
88 min

Comeflywithus

Greenhouse Gas Emission Data
39 min

Greenhouse Gas Emission Data

Public, difficult to access, and not always correct

Rowhammer in the Wild: Large-Scale Insights from FlippyR.AM
40 min

Rowhammer in the Wild: Large-Scale Insights from FlippyR.AM

Hatupangwingwi
55 min

Hatupangwingwi

The story how Kenyans fought back against intrusive digital…

How to keep Open Source open without leaving our communities open to threats
37 min

How to keep Open Source open without leaving our communities open to threats

"They Talk Tech" live mit Anne Roth
46 min

"They Talk Tech" live mit Anne Roth

Chaos Communication Chemistry
41 min

Chaos Communication Chemistry

DNA security systems based on molecular randomness

Hacking Karlsruhe - 10 years later
40 min

Hacking Karlsruhe - 10 years later

Syncing visuals and stage lights against the beat of live music: an introduction
30 min

Syncing visuals and stage lights against the beat of live music: an introduction

Kenji Tanaka LIVE // Insights into my workflow, structure and philosophy
63 min

Kenji Tanaka LIVE // Insights into my workflow, structure and philosophy

Netzpolitik in der Schweiz: Zwischen Bodensee und Matterhorn
40 min

Netzpolitik in der Schweiz: Zwischen Bodensee und Matterhorn

Shit for Future: turning human shit into a climate solution
40 min

Shit for Future: turning human shit into a climate solution

The Small Packet of Bits That Can Save (or Destabilize) a City
40 min

The Small Packet of Bits That Can Save (or Destabilize) a City

1965 + 60 Years of Algorithmic Art with Computers
50 min

1965 + 60 Years of Algorithmic Art with Computers

Teckids – eine verstehbare (digitale) Welt
29 min

Teckids – eine verstehbare (digitale) Welt

Machine Vision
34 min

Machine Vision

Vom Algorithmus zum Baumpilz im digitalen Metabolismus

Von Fuzzern zu Agenten: Entwicklung eines Cyber Reasoning Systems für die AIxCC
52 min

Von Fuzzern zu Agenten: Entwicklung eines Cyber Reasoning Systems für die AIxCC

Who runs the www? WSIS+20 and the future of Internet governance
40 min

Who runs the www? WSIS+20 and the future of Internet governance

Podcast Radiomegahertz – MHz rein | kHz raus | Ultraschall.fm mittendrin
36 min

Podcast Radiomegahertz – MHz rein | kHz raus | Ultraschall.fm mittendrin

Omnibus Halbgarer Machenschaften (OHM #23)
46 min

Omnibus Halbgarer Machenschaften (OHM #23)

The Eyes of Photon Science: Imaging, Simulation and the Quest to Make the Invisible Visible
39 min

The Eyes of Photon Science: Imaging, Simulation and the Quest to Make the Invisible…

The Museum of Care: Open-Source Survival Kit Collection
37 min

The Museum of Care: Open-Source Survival Kit Collection

a media-almost-archaeology on data that is too dirty for "AI"
37 min

a media-almost-archaeology on data that is too dirty for "AI"

Chaos all year round
49 min

Chaos all year round

Atoms in Space
39 min

Atoms in Space

Lessons from Building an Open-Architecture Secure Element
42 min

Lessons from Building an Open-Architecture Secure Element

netzpolitik.org Off/On: Off The Record live
46 min

netzpolitik.org Off/On: Off The Record live

Code to Craft: Procedural Generation for the Physical World
35 min

Code to Craft: Procedural Generation for the Physical World

CCC&T - Cosmic ray, the Climate Catastrophe and Trains.
39 min

CCC&T - Cosmic ray, the Climate Catastrophe and Trains.

AAA - Ask Advi Anything
43 min

AAA - Ask Advi Anything

Von wegen Eisblumen! Wie man mit Code, Satelliten und Schiffsexpeditionen die bunte Welt des arktischen Phytoplanktons sichtbar macht
37 min

Von wegen Eisblumen! Wie man mit Code, Satelliten und Schiffsexpeditionen die bunte Welt…

​WissPod Jahresrückblick 2025 oder: KI in der Wissenschaft!?
89 min

​WissPod Jahresrückblick 2025 oder: KI in der Wissenschaft!?

Coding Dissent: Art, Technology, and Tactical Media
38 min

Coding Dissent: Art, Technology, and Tactical Media

Live, Die, Repeat
40 min

Live, Die, Repeat

The fight against data retention and boundless access to…

Landtagsrevue Live - AUA (Ask us Anything)
91 min

Landtagsrevue Live - AUA (Ask us Anything)

BE Modded: Exploring and hacking the Vital Bracelet ecosystem
34 min

BE Modded: Exploring and hacking the Vital Bracelet ecosystem

The Spectrum - Hackspace Beyond Hacking
37 min

The Spectrum - Hackspace Beyond Hacking

What You Hack Is What You Mean: 35 Years of Wiring Sense into Text
42 min

What You Hack Is What You Mean: 35 Years of Wiring Sense into Text

Hegemony Eroding: Excavating Diversity in Latent Space
35 min

Hegemony Eroding: Excavating Diversity in Latent Space

Zellkultur
45 min

Zellkultur

Life on Hold: What Does True Solidarity Look Like Beyond Duldung, Camps, Deportation, and Payment Cards?
60 min

Life on Hold: What Does True Solidarity Look Like Beyond Duldung, Camps, Deportation, and…